Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
K&N Panel Filter 33-2399K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your
K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower.
Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty.
K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Specifications:
- Air Filter Shape: Panel
- Filter Material: Cotton Gauze
- Washable: Yes
- Height: 25 mm
- Outside Length: 181 mm
- Outside Width: 168 mm
- Package Contents: 1 Air Filter
- Package Quantity: 1
- Warranty: 1,000,000 Miles/10 Year
- Product Style: Panel Air Filter
- Weight: 0.4 kg
- Filter Re-Oiling Amount: 18 ml
- Product Box Height: 246 mm
- Product Box Length: 196 mm
- Product Box Width: 44 mm
Vehicle applications:
| Make | Model | Engine | Year | Specific |
|---|---|---|---|---|
| Fiat | Sedici | 1.9L L4 Diesel | 2006-2010 | |
| Infiniti | EX35 | 3.5L V6 Gas | 2008-2012 | All (2 required) |
| Infiniti | EX37 | 3.7L V6 Gas | 2013-2013 | All (2 required) |
| Infiniti | G25 | 2.5L V6 Gas | 2011-2012 | All (2 required) |
| Infiniti | G35 | 3.5L V6 Gas | 2008-2008 | All (2 required) |
| Infiniti | G35 | 3.5L V6 Gas | 2007-2007 | Sedan (2 required) |
| Infiniti | G37 | 3.7L V6 Gas | 2008-2013 | All (2 required) |
| Infiniti | Q40 | 3.7L V6 Gas | 2015-2015 | All (2 required) |
| Infiniti | Q60 | 3.7L V6 Gas | 2014-2015 | All (2 required) |
| Infiniti | QX50 | 3.7L V6 Gas | 2014-2017 | All (2 required) |
| Nissan | 350Z | 3.5L V6 Gas | 2007-2009 | All (2 required) |
| Nissan | 370Z | 3.7L V6 Gas | 2009-2020 | All (2 required) |
| Nissan | Fairlady Z | 3.7L V6 Gas | 2009-2017 | All (2 required) |
| Nissan | Skyline 250GT | 2.5L V6 Gas | 2007-2014 | All (2 required) |
| Nissan | Skyline 350GT | 3.5L V6 Gas | 2007-2008 | All (2 required) |
| Nissan | Skyline 370GT | 3.7L V6 Gas | 2009-2017 | All (2 required) |
| Suzuki | SX4 | 1.9L L4 Diesel | 2006-2009 |
Cross references:
- AC Delco A3674C
- BMC FB48320
- Champ Labs. AF4038
- Fiat 71743887
- Fram CA10544
- Infiniti 16545JK20A
- Infiniti 16546JK20A
- Infiniti 1654LK20A
- Luber-Finer AF4038
- Mann-Hummel C1880
- Mobil MA4038
- Nissan 16546JK20A
- Nissan AY120NS050
- Pronto PA5824
- Purepro A5824
- Purolator A35824
- Ryco A1761
- Service Champ AF5824
- STP SA10544
- Suzuki 1378079J50
- Suzuki 178079J50
- Valvoline VA332
- Warner WAF4038
- Wesfil WA5193
- WIX 49362
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1107 reviews
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Product Reviews
★★★★★ 5
My favorite undershirt with boleros & crop tops
Color: Black, Size: Small
Not overly thick or thin - it’s just right for staying warm and wearing under crop tops and boleros. Form fitting but not uncomfortably snug. Great quality! I now own 3 and might get one more since I bought a bunch of new crop tops and boleros.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2025
★★★★★ 5
A T-Shirt to live in
Color: White, Size: X-Small
This crew neck if super soft and work really well under cashmere sweaters. Wish they came in more colors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
Great so far
Color: White, Size: X-Small
Loving this shirt so far, i just got it. It is soft and comfortable and I wish for more colors
I wonder how it will do in the wash
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 12, 2025
★★★★★ 3
Buy at least 2 sizes bigger than you need.
Color: Heather Grey, Size: Large, Color: Heather Grey, Size: Large
These shirts are pretty soft, you can tell they are different from other shirts boasting natural fibers. They don't compare to the thin or drape from onno shirts but its less than half the cost. I have ordered 3 more, but with that being said... the shrinkage was unreasonable. The shirt lost 4 FULL inches in length and a little over an inch in width. Now, taking into consideration that I am a full grown hobbit this shirt is unsuitable for anyone over 5ft tall. I this would literally be a crop top on a average size adult and it is a large! I'm going to test out 2 other styles and the xl in this shirt but holy cow i really want to wear it because it's thin and will protect me from the sun but it's way too small now. I really hate the feeling of dry fit uv protection clothing, and this is so much better. Just wish I could wear it and didn't waste 20 bucks washing a shirt I can only wear in the comfort of my own home in fear of being arrested for indecent exposure. I would estimate shrinkage is more than one size.
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Reviewed in the United States on May 25, 2025
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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